But hydraulic (液压的) fracturing can also produce debate and anger over the risk of groundwater pollution. This
method of drilling is not federally supervised under the Safe Drinking Water Act. Some in Congress want to end that exemption (豁免) from the law.
Natural gas provides Americans with about one fourth of their energy. And, unlike oil, most of it is produced in America. Gas producers invested heavily in reaching new supplies when prices were high. But prices are down sharply now because the depression cut demand for energy. So energy expert Eric Potter says it is too early to know how the changing market prices will affect the market for gas shale exploration.
1. We can learn from the first paragraph that ______.
A. natural gas releases methane and carbon dioxide
B. natural gas is considered as the cleanest energy
C. natural gas is more environmentally friendly than other fossil fuels
D. natural gas is a renewable source of energy
答案及解析:
1.C。从It produces half the carbon dioxide of other fossil fuels. So it may help cut the production of carbon gases linked to climate change.可知 天然气燃烧产生的二氧化碳气体只是燃烧其他矿物燃料的一半,所以是环保的。
2. The word “fracture” in paragraph 3 probably means ______.
【【新人教版】2014年高考英语要点梳理+重点突破:必修3 Unit 2 《Healthy eating》】相关文章:
★ 【浙江专用】2014届高考英语一轮复习课时作业(四)必修1Unit 4《Earthquakes》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修8 unit1《A land of diversity》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修7 unit5《Travelling abroad》
★ 【北京专用】2014届高考英语一轮复习方案课时作业:必修3 Unit 2 Healthy eating
★ 【北京专用】2014届高考英语一轮复习方案课时作业:选修8 Unit 4 Pygmalion
★ 【浙江专用】2014届高考英语一轮复习课时作业(三十九)选修8Unit 4《Pygmalion》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修1 unit3《Travel journal》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修3 unit4《Astronomy》
★ 【三维设计】2017届高考英语(江苏专用)二轮复习课件:必修4 Unit 2《Sports events》
★ 【浙江专用】2014届高考英语一轮复习课时作业(三十)选修6Unit 5《The power of nature》
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21